In 1999 and 2000 he was a program manager for Hotmail, owned by Microsoft, where he led the effort to create Hotmail's first spam filter. The later spent a year at VMware, where he was product manager for VMware's .

The storage company EMC in January 2004, and Sheth helped lead integration efforts between the two companies but ultimately left in July of that year to join Google's newly created enterprise division, where he is now the Google Apps senior product manager. 

"It was probably the toughest decision I've ever had to make because VMware was doing fabulous at the time, and Google was taking off," Sheth says. "One of the things that really attracted me was this idea of being able to go into a completely new market with a lot of great technology at Google."

Sheth's charter was "to figure out how we can take some of the other technologies within Google, specifically around collaboration and communication, and bring it into the enterprise."